1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2011 NetApp, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 /* 29 * This file and its contents are supplied under the terms of the 30 * Common Development and Distribution License ("CDDL"), version 1.0. 31 * You may only use this file in accordance with the terms of version 32 * 1.0 of the CDDL. 33 * 34 * A full copy of the text of the CDDL should have accompanied this 35 * source. A copy of the CDDL is also available via the Internet at 36 * http://www.illumos.org/license/CDDL. 37 * 38 * Copyright 2015 Pluribus Networks Inc. 39 * Copyright 2018 Joyent, Inc. 40 * Copyright 2022 Oxide Computer Company 41 * Copyright 2022 OmniOS Community Edition (OmniOSce) Association. 42 */ 43 44 45 #include <sys/types.h> 46 #ifndef WITHOUT_CAPSICUM 47 #include <sys/capsicum.h> 48 #endif 49 #include <sys/mman.h> 50 #include <sys/time.h> 51 52 #ifdef __FreeBSD__ 53 #include <amd64/vmm/intel/vmcs.h> 54 #else 55 #include <sys/cpuset.h> 56 #include <intel/vmcs.h> 57 #endif 58 59 #include <machine/atomic.h> 60 61 #ifndef WITHOUT_CAPSICUM 62 #include <capsicum_helpers.h> 63 #endif 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <string.h> 67 #include <err.h> 68 #include <errno.h> 69 #include <libgen.h> 70 #include <unistd.h> 71 #include <assert.h> 72 #include <pthread.h> 73 #include <pthread_np.h> 74 #include <sysexits.h> 75 #include <stdbool.h> 76 #include <stdint.h> 77 78 #include <machine/vmm.h> 79 #ifndef WITHOUT_CAPSICUM 80 #include <machine/vmm_dev.h> 81 #endif 82 #ifdef __FreeBSD__ 83 #include <machine/vmm_instruction_emul.h> 84 #endif 85 #include <vmmapi.h> 86 87 #include "acpi.h" 88 #include "bhyverun.h" 89 #include "bootrom.h" 90 #include "config.h" 91 #include "debug.h" 92 #include "gdb.h" 93 #include "ioapic.h" 94 #include "mem.h" 95 #include "mevent.h" 96 #include "pci_emul.h" 97 #include "pci_lpc.h" 98 #include "qemu_fwcfg.h" 99 #include "tpm_device.h" 100 #include "spinup_ap.h" 101 #include "vmgenc.h" 102 #include "vmexit.h" 103 #ifndef __FreeBSD__ 104 #include "smbiostbl.h" 105 #include "privileges.h" 106 #endif 107 108 #define MB (1024UL * 1024) 109 #define GB (1024UL * MB) 110 111 int guest_ncpus; 112 uint16_t cpu_cores, cpu_sockets, cpu_threads; 113 114 int raw_stdio = 0; 115 116 static const int BSP = 0; 117 118 static cpuset_t cpumask; 119 120 static void vm_loop(struct vmctx *ctx, struct vcpu *vcpu); 121 122 static struct vcpu_info { 123 struct vmctx *ctx; 124 struct vcpu *vcpu; 125 int vcpuid; 126 } *vcpu_info; 127 128 #ifdef __FreeBSD__ 129 static cpuset_t **vcpumap; 130 #endif 131 132 133 /* 134 * XXX This parser is known to have the following issues: 135 * 1. It accepts null key=value tokens ",," as setting "cpus" to an 136 * empty string. 137 * 138 * The acceptance of a null specification ('-c ""') is by design to match the 139 * manual page syntax specification, this results in a topology of 1 vCPU. 140 */ 141 int 142 bhyve_topology_parse(const char *opt) 143 { 144 char *cp, *str, *tofree; 145 146 if (*opt == '\0') { 147 set_config_value("sockets", "1"); 148 set_config_value("cores", "1"); 149 set_config_value("threads", "1"); 150 set_config_value("cpus", "1"); 151 return (0); 152 } 153 154 tofree = str = strdup(opt); 155 if (str == NULL) 156 errx(4, "Failed to allocate memory"); 157 158 while ((cp = strsep(&str, ",")) != NULL) { 159 if (strncmp(cp, "cpus=", strlen("cpus=")) == 0) 160 set_config_value("cpus", cp + strlen("cpus=")); 161 else if (strncmp(cp, "sockets=", strlen("sockets=")) == 0) 162 set_config_value("sockets", cp + strlen("sockets=")); 163 else if (strncmp(cp, "cores=", strlen("cores=")) == 0) 164 set_config_value("cores", cp + strlen("cores=")); 165 else if (strncmp(cp, "threads=", strlen("threads=")) == 0) 166 set_config_value("threads", cp + strlen("threads=")); 167 else if (strchr(cp, '=') != NULL) 168 goto out; 169 else 170 set_config_value("cpus", cp); 171 } 172 free(tofree); 173 return (0); 174 175 out: 176 free(tofree); 177 return (-1); 178 } 179 180 static int 181 parse_int_value(const char *key, const char *value, int minval, int maxval) 182 { 183 char *cp; 184 long lval; 185 186 errno = 0; 187 lval = strtol(value, &cp, 0); 188 if (errno != 0 || *cp != '\0' || cp == value || lval < minval || 189 lval > maxval) 190 errx(4, "Invalid value for %s: '%s'", key, value); 191 return (lval); 192 } 193 194 /* 195 * Set the sockets, cores, threads, and guest_cpus variables based on 196 * the configured topology. 197 * 198 * The limits of UINT16_MAX are due to the types passed to 199 * vm_set_topology(). vmm.ko may enforce tighter limits. 200 */ 201 static void 202 calc_topology(void) 203 { 204 const char *value; 205 bool explicit_cpus; 206 uint64_t ncpus; 207 208 value = get_config_value("cpus"); 209 if (value != NULL) { 210 guest_ncpus = parse_int_value("cpus", value, 1, UINT16_MAX); 211 explicit_cpus = true; 212 } else { 213 guest_ncpus = 1; 214 explicit_cpus = false; 215 } 216 value = get_config_value("cores"); 217 if (value != NULL) 218 cpu_cores = parse_int_value("cores", value, 1, UINT16_MAX); 219 else 220 cpu_cores = 1; 221 value = get_config_value("threads"); 222 if (value != NULL) 223 cpu_threads = parse_int_value("threads", value, 1, UINT16_MAX); 224 else 225 cpu_threads = 1; 226 value = get_config_value("sockets"); 227 if (value != NULL) 228 cpu_sockets = parse_int_value("sockets", value, 1, UINT16_MAX); 229 else 230 cpu_sockets = guest_ncpus; 231 232 /* 233 * Compute sockets * cores * threads avoiding overflow. The 234 * range check above insures these are 16 bit values. 235 */ 236 ncpus = (uint64_t)cpu_sockets * cpu_cores * cpu_threads; 237 if (ncpus > UINT16_MAX) 238 errx(4, "Computed number of vCPUs too high: %ju", 239 (uintmax_t)ncpus); 240 241 if (explicit_cpus) { 242 if (guest_ncpus != (int)ncpus) 243 errx(4, "Topology (%d sockets, %d cores, %d threads) " 244 "does not match %d vCPUs", 245 cpu_sockets, cpu_cores, cpu_threads, 246 guest_ncpus); 247 } else 248 guest_ncpus = ncpus; 249 } 250 251 #ifdef __FreeBSD__ 252 int 253 bhyve_pincpu_parse(const char *opt) 254 { 255 int vcpu, pcpu; 256 const char *value; 257 char *newval; 258 char key[16]; 259 260 if (sscanf(opt, "%d:%d", &vcpu, &pcpu) != 2) { 261 fprintf(stderr, "invalid format: %s\n", opt); 262 return (-1); 263 } 264 265 if (vcpu < 0) { 266 fprintf(stderr, "invalid vcpu '%d'\n", vcpu); 267 return (-1); 268 } 269 270 if (pcpu < 0 || pcpu >= CPU_SETSIZE) { 271 fprintf(stderr, "hostcpu '%d' outside valid range from " 272 "0 to %d\n", pcpu, CPU_SETSIZE - 1); 273 return (-1); 274 } 275 276 snprintf(key, sizeof(key), "vcpu.%d.cpuset", vcpu); 277 value = get_config_value(key); 278 279 if (asprintf(&newval, "%s%s%d", value != NULL ? value : "", 280 value != NULL ? "," : "", pcpu) == -1) { 281 perror("failed to build new cpuset string"); 282 return (-1); 283 } 284 285 set_config_value(key, newval); 286 free(newval); 287 return (0); 288 } 289 290 static void 291 parse_cpuset(int vcpu, const char *list, cpuset_t *set) 292 { 293 char *cp, *token; 294 int pcpu, start; 295 296 CPU_ZERO(set); 297 start = -1; 298 token = __DECONST(char *, list); 299 for (;;) { 300 pcpu = strtoul(token, &cp, 0); 301 if (cp == token) 302 errx(4, "invalid cpuset for vcpu %d: '%s'", vcpu, list); 303 if (pcpu < 0 || pcpu >= CPU_SETSIZE) 304 errx(4, "hostcpu '%d' outside valid range from 0 to %d", 305 pcpu, CPU_SETSIZE - 1); 306 switch (*cp) { 307 case ',': 308 case '\0': 309 if (start >= 0) { 310 if (start > pcpu) 311 errx(4, "Invalid hostcpu range %d-%d", 312 start, pcpu); 313 while (start < pcpu) { 314 CPU_SET(start, set); 315 start++; 316 } 317 start = -1; 318 } 319 CPU_SET(pcpu, set); 320 break; 321 case '-': 322 if (start >= 0) 323 errx(4, "invalid cpuset for vcpu %d: '%s'", 324 vcpu, list); 325 start = pcpu; 326 break; 327 default: 328 errx(4, "invalid cpuset for vcpu %d: '%s'", vcpu, list); 329 } 330 if (*cp == '\0') 331 break; 332 token = cp + 1; 333 } 334 } 335 336 static void 337 build_vcpumaps(void) 338 { 339 char key[16]; 340 const char *value; 341 int vcpu; 342 343 vcpumap = calloc(guest_ncpus, sizeof(*vcpumap)); 344 for (vcpu = 0; vcpu < guest_ncpus; vcpu++) { 345 snprintf(key, sizeof(key), "vcpu.%d.cpuset", vcpu); 346 value = get_config_value(key); 347 if (value == NULL) 348 continue; 349 vcpumap[vcpu] = malloc(sizeof(cpuset_t)); 350 if (vcpumap[vcpu] == NULL) 351 err(4, "Failed to allocate cpuset for vcpu %d", vcpu); 352 parse_cpuset(vcpu, value, vcpumap[vcpu]); 353 } 354 } 355 #endif /* __FreeBSD__ */ 356 357 void * 358 paddr_guest2host(struct vmctx *ctx, uintptr_t gaddr, size_t len) 359 { 360 361 return (vm_map_gpa(ctx, gaddr, len)); 362 } 363 364 int 365 fbsdrun_virtio_msix(void) 366 { 367 368 return (get_config_bool_default("virtio_msix", true)); 369 } 370 371 struct vcpu * 372 fbsdrun_vcpu(int vcpuid) 373 { 374 return (vcpu_info[vcpuid].vcpu); 375 } 376 377 static void * 378 fbsdrun_start_thread(void *param) 379 { 380 char tname[MAXCOMLEN + 1]; 381 struct vcpu_info *vi = param; 382 #ifdef __FreeBSD__ 383 int error; 384 #endif 385 386 snprintf(tname, sizeof(tname), "vcpu %d", vi->vcpuid); 387 pthread_set_name_np(pthread_self(), tname); 388 389 #ifdef __FreeBSD__ 390 if (vcpumap[vi->vcpuid] != NULL) { 391 error = pthread_setaffinity_np(pthread_self(), 392 sizeof(cpuset_t), vcpumap[vi->vcpuid]); 393 assert(error == 0); 394 } 395 #endif 396 397 gdb_cpu_add(vi->vcpu); 398 399 vm_loop(vi->ctx, vi->vcpu); 400 401 /* not reached */ 402 exit(1); 403 return (NULL); 404 } 405 406 void 407 fbsdrun_addcpu(int vcpuid, bool suspend) 408 { 409 struct vcpu_info *vi; 410 pthread_t thr; 411 int error; 412 413 vi = &vcpu_info[vcpuid]; 414 415 error = vm_activate_cpu(vi->vcpu); 416 if (error != 0) 417 err(EX_OSERR, "could not activate CPU %d", vi->vcpuid); 418 419 CPU_SET_ATOMIC(vcpuid, &cpumask); 420 421 if (suspend) { 422 error = vm_suspend_cpu(vi->vcpu); 423 assert(error == 0); 424 } 425 426 error = pthread_create(&thr, NULL, fbsdrun_start_thread, vi); 427 assert(error == 0); 428 } 429 430 void 431 fbsdrun_deletecpu(int vcpu) 432 { 433 static pthread_mutex_t resetcpu_mtx = PTHREAD_MUTEX_INITIALIZER; 434 static pthread_cond_t resetcpu_cond = PTHREAD_COND_INITIALIZER; 435 436 pthread_mutex_lock(&resetcpu_mtx); 437 if (!CPU_ISSET(vcpu, &cpumask)) { 438 EPRINTLN("Attempting to delete unknown cpu %d", vcpu); 439 exit(4); 440 } 441 442 CPU_CLR(vcpu, &cpumask); 443 444 if (vcpu != BSP) { 445 pthread_cond_signal(&resetcpu_cond); 446 pthread_mutex_unlock(&resetcpu_mtx); 447 pthread_exit(NULL); 448 /* NOTREACHED */ 449 } 450 451 while (!CPU_EMPTY(&cpumask)) { 452 pthread_cond_wait(&resetcpu_cond, &resetcpu_mtx); 453 } 454 pthread_mutex_unlock(&resetcpu_mtx); 455 } 456 457 static void 458 vm_loop(struct vmctx *ctx, struct vcpu *vcpu) 459 { 460 struct vm_exit vme; 461 int error, rc; 462 enum vm_exitcode exitcode; 463 cpuset_t active_cpus; 464 struct vm_entry *ventry; 465 466 error = vm_active_cpus(ctx, &active_cpus); 467 assert(CPU_ISSET(vcpu_id(vcpu), &active_cpus)); 468 469 ventry = vmentry_vcpu(vcpu_id(vcpu)); 470 471 while (1) { 472 error = vm_run(vcpu, ventry, &vme); 473 if (error != 0) 474 break; 475 476 if (ventry->cmd != VEC_DEFAULT) { 477 /* 478 * Discard any lingering entry state after it has been 479 * submitted via vm_run(). 480 */ 481 bzero(ventry, sizeof (*ventry)); 482 } 483 484 exitcode = vme.exitcode; 485 if (exitcode >= VM_EXITCODE_MAX || 486 vmexit_handlers[exitcode] == NULL) { 487 fprintf(stderr, "vm_loop: unexpected exitcode 0x%x\n", 488 exitcode); 489 exit(4); 490 } 491 492 rc = (*vmexit_handlers[exitcode])(ctx, vcpu, &vme); 493 494 switch (rc) { 495 case VMEXIT_CONTINUE: 496 break; 497 case VMEXIT_ABORT: 498 abort(); 499 default: 500 exit(4); 501 } 502 } 503 EPRINTLN("vm_run error %d, errno %d", error, errno); 504 } 505 506 static int 507 num_vcpus_allowed(struct vmctx *ctx, struct vcpu *vcpu) 508 { 509 uint16_t sockets, cores, threads, maxcpus; 510 #ifdef __FreeBSD__ 511 int tmp, error; 512 513 /* 514 * The guest is allowed to spinup more than one processor only if the 515 * UNRESTRICTED_GUEST capability is available. 516 */ 517 error = vm_get_capability(vcpu, VM_CAP_UNRESTRICTED_GUEST, &tmp); 518 if (error != 0) 519 return (1); 520 #else 521 int error; 522 /* Unrestricted Guest is always enabled on illumos */ 523 524 #endif /* __FreeBSD__ */ 525 526 error = vm_get_topology(ctx, &sockets, &cores, &threads, &maxcpus); 527 if (error == 0) 528 return (maxcpus); 529 else 530 return (1); 531 } 532 533 static struct vmctx * 534 do_open(const char *vmname) 535 { 536 struct vmctx *ctx; 537 int error; 538 bool reinit, romboot; 539 540 reinit = romboot = false; 541 542 romboot = bootrom_boot(); 543 544 #ifndef __FreeBSD__ 545 uint64_t create_flags = 0; 546 if (get_config_bool_default("memory.use_reservoir", false)) { 547 create_flags |= VCF_RESERVOIR_MEM; 548 } 549 error = vm_create(vmname, create_flags); 550 #else 551 error = vm_create(vmname); 552 #endif /* __FreeBSD__ */ 553 if (error) { 554 if (errno == EEXIST) { 555 if (romboot) { 556 reinit = true; 557 } else { 558 /* 559 * The virtual machine has been setup by the 560 * userspace bootloader. 561 */ 562 } 563 } else { 564 perror("vm_create"); 565 exit(4); 566 } 567 } else { 568 if (!romboot) { 569 /* 570 * If the virtual machine was just created then a 571 * bootrom must be configured to boot it. 572 */ 573 fprintf(stderr, "virtual machine cannot be booted\n"); 574 exit(4); 575 } 576 } 577 578 ctx = vm_open(vmname); 579 if (ctx == NULL) { 580 perror("vm_open"); 581 exit(4); 582 } 583 584 #ifndef WITHOUT_CAPSICUM 585 if (vm_limit_rights(ctx) != 0) 586 err(EX_OSERR, "vm_limit_rights"); 587 #endif 588 589 if (reinit) { 590 #ifndef __FreeBSD__ 591 error = vm_reinit(ctx, 0); 592 #else 593 error = vm_reinit(ctx); 594 #endif 595 if (error) { 596 perror("vm_reinit"); 597 exit(4); 598 } 599 } 600 error = vm_set_topology(ctx, cpu_sockets, cpu_cores, cpu_threads, 0); 601 if (error) 602 errx(EX_OSERR, "vm_set_topology"); 603 return (ctx); 604 } 605 606 bool 607 bhyve_parse_config_option(const char *option) 608 { 609 const char *value; 610 char *path; 611 612 value = strchr(option, '='); 613 if (value == NULL || value[1] == '\0') 614 return (false); 615 path = strndup(option, value - option); 616 if (path == NULL) 617 err(4, "Failed to allocate memory"); 618 set_config_value(path, value + 1); 619 free(path); 620 return (true); 621 } 622 623 void 624 bhyve_parse_simple_config_file(const char *path) 625 { 626 FILE *fp; 627 char *line, *cp; 628 size_t linecap; 629 unsigned int lineno; 630 631 fp = fopen(path, "r"); 632 if (fp == NULL) 633 err(4, "Failed to open configuration file %s", path); 634 line = NULL; 635 linecap = 0; 636 lineno = 1; 637 for (lineno = 1; getline(&line, &linecap, fp) > 0; lineno++) { 638 if (*line == '#' || *line == '\n') 639 continue; 640 cp = strchr(line, '\n'); 641 if (cp != NULL) 642 *cp = '\0'; 643 if (!bhyve_parse_config_option(line)) 644 errx(4, "%s line %u: invalid config option '%s'", path, 645 lineno, line); 646 } 647 free(line); 648 fclose(fp); 649 } 650 651 void 652 bhyve_parse_gdb_options(const char *opt) 653 { 654 const char *sport; 655 char *colon; 656 657 if (opt[0] == 'w') { 658 set_config_bool("gdb.wait", true); 659 opt++; 660 } 661 662 colon = strrchr(opt, ':'); 663 if (colon == NULL) { 664 sport = opt; 665 } else { 666 *colon = '\0'; 667 colon++; 668 sport = colon; 669 set_config_value("gdb.address", opt); 670 } 671 672 set_config_value("gdb.port", sport); 673 } 674 675 int 676 main(int argc, char *argv[]) 677 { 678 int error; 679 int max_vcpus, memflags; 680 struct vcpu *bsp; 681 struct vmctx *ctx; 682 size_t memsize; 683 const char *value, *vmname; 684 685 bhyve_init_config(); 686 687 bhyve_optparse(argc, argv); 688 argc -= optind; 689 argv += optind; 690 691 if (argc > 1) 692 bhyve_usage(1); 693 694 if (argc == 1) 695 set_config_value("name", argv[0]); 696 697 vmname = get_config_value("name"); 698 if (vmname == NULL) 699 bhyve_usage(1); 700 701 if (get_config_bool_default("config.dump", false)) { 702 dump_config(); 703 exit(1); 704 } 705 706 #ifndef __FreeBSD__ 707 illumos_priv_init(); 708 #endif 709 710 calc_topology(); 711 712 #ifdef __FreeBSD__ 713 build_vcpumaps(); 714 #endif 715 716 value = get_config_value("memory.size"); 717 error = vm_parse_memsize(value, &memsize); 718 if (error) 719 errx(EX_USAGE, "invalid memsize '%s'", value); 720 721 ctx = do_open(vmname); 722 723 bsp = vm_vcpu_open(ctx, BSP); 724 max_vcpus = num_vcpus_allowed(ctx, bsp); 725 if (guest_ncpus > max_vcpus) { 726 fprintf(stderr, "%d vCPUs requested but only %d available\n", 727 guest_ncpus, max_vcpus); 728 exit(4); 729 } 730 731 bhyve_init_vcpu(bsp); 732 733 /* Allocate per-VCPU resources. */ 734 vcpu_info = calloc(guest_ncpus, sizeof(*vcpu_info)); 735 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) { 736 vcpu_info[vcpuid].ctx = ctx; 737 vcpu_info[vcpuid].vcpuid = vcpuid; 738 if (vcpuid == BSP) 739 vcpu_info[vcpuid].vcpu = bsp; 740 else 741 vcpu_info[vcpuid].vcpu = vm_vcpu_open(ctx, vcpuid); 742 } 743 744 memflags = 0; 745 if (get_config_bool_default("memory.wired", false)) 746 memflags |= VM_MEM_F_WIRED; 747 if (get_config_bool_default("memory.guest_in_core", false)) 748 memflags |= VM_MEM_F_INCORE; 749 vm_set_memflags(ctx, memflags); 750 #ifdef __FreeBSD__ 751 error = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 752 #else 753 int _errno; 754 do { 755 errno = 0; 756 error = vm_setup_memory(ctx, memsize, VM_MMAP_ALL); 757 _errno = errno; 758 if (error != 0 && _errno == ENOMEM) { 759 (void) fprintf(stderr, "Unable to allocate memory " 760 "(%llu), retrying in 1 second\n", memsize); 761 sleep(1); 762 } 763 } while (_errno == ENOMEM); 764 #endif 765 if (error) { 766 fprintf(stderr, "Unable to set up memory (%d)\n", errno); 767 exit(4); 768 } 769 770 init_mem(guest_ncpus); 771 init_bootrom(ctx); 772 773 if (bhyve_init_platform(ctx, bsp) != 0) 774 exit(4); 775 776 if (qemu_fwcfg_init(ctx) != 0) { 777 fprintf(stderr, "qemu fwcfg initialization error\n"); 778 exit(4); 779 } 780 781 if (qemu_fwcfg_add_file("opt/bhyve/hw.ncpu", sizeof(guest_ncpus), 782 &guest_ncpus) != 0) { 783 fprintf(stderr, "Could not add qemu fwcfg opt/bhyve/hw.ncpu\n"); 784 exit(4); 785 } 786 787 /* 788 * Exit if a device emulation finds an error in its initialization 789 */ 790 if (init_pci(ctx) != 0) { 791 EPRINTLN("Device emulation initialization error: %s", 792 strerror(errno)); 793 exit(4); 794 } 795 if (init_tpm(ctx) != 0) { 796 EPRINTLN("Failed to init TPM device"); 797 exit(4); 798 } 799 800 /* 801 * Initialize after PCI, to allow a bootrom file to reserve the high 802 * region. 803 */ 804 if (get_config_bool("acpi_tables")) 805 vmgenc_init(ctx); 806 807 #ifdef __FreeBSD__ 808 init_gdb(ctx); 809 #else 810 if (value != NULL) { 811 int port = atoi(value); 812 813 if (port < 0) 814 init_mdb(ctx); 815 else 816 init_gdb(ctx); 817 } 818 #endif 819 820 if (bootrom_boot()) { 821 #ifdef __FreeBSD__ 822 if (vm_set_capability(bsp, VM_CAP_UNRESTRICTED_GUEST, 1)) { 823 fprintf(stderr, "ROM boot failed: unrestricted guest " 824 "capability not available\n"); 825 exit(4); 826 } 827 #else 828 /* Unrestricted Guest is always enabled on illumos */ 829 #endif 830 error = vcpu_reset(bsp); 831 assert(error == 0); 832 } 833 834 if (bhyve_init_platform_late(ctx, bsp) != 0) 835 exit(4); 836 837 /* 838 * Change the proc title to include the VM name. 839 */ 840 setproctitle("%s", vmname); 841 842 #ifndef WITHOUT_CAPSICUM 843 caph_cache_catpages(); 844 845 if (caph_limit_stdout() == -1 || caph_limit_stderr() == -1) 846 errx(EX_OSERR, "Unable to apply rights for sandbox"); 847 848 if (caph_enter() == -1) 849 errx(EX_OSERR, "cap_enter() failed"); 850 #endif 851 852 #ifndef __FreeBSD__ 853 illumos_priv_lock(); 854 #endif 855 856 #ifndef __FreeBSD__ 857 if (vmentry_init(guest_ncpus) != 0) 858 err(EX_OSERR, "vmentry_init() failed"); 859 #endif 860 861 /* 862 * Add all vCPUs. 863 */ 864 for (int vcpuid = 0; vcpuid < guest_ncpus; vcpuid++) { 865 #ifdef __FreeBSD__ 866 bool suspend = (vcpuid != BSP); 867 #else 868 bool suspend = vcpuid == BSP && 869 get_config_bool_default("suspend_at_boot", false); 870 #endif 871 bhyve_start_vcpu(vcpu_info[vcpuid].vcpu, vcpuid == BSP, 872 suspend); 873 } 874 875 /* 876 * Head off to the main event dispatch loop 877 */ 878 mevent_dispatch(); 879 880 exit(4); 881 } 882